internal static EvDevDeviceDescription ParseFromEnv(string env)
{
var formatEx = new ArgumentException(
"Invalid device format, expected `(path):type=(touchscreen):[calibration=m11,m12,m21,m22,m31,m32]");
var items = env.Split(new[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (items.Length < 2)
{
throw formatEx;
}
var path = items[0];
var dic = items.Skip(1)
.Select(i => i.Split(new[] { '=' }, 2))
.ToDictionary(x => x[0], x => x[1]);
if (!dic.TryGetValue("type", out var type))
{
throw formatEx;
}
if (type == "touchscreen")
{
return(EvDevTouchScreenDeviceDescription.ParseFromEnv(path, dic));
}
throw formatEx;
}
public EvDevSingleTouchScreen(EvDevDevice device, EvDevTouchScreenDeviceDescription description,
IScreenInfoProvider screenInfo) : base(device)
{
if (device.AbsX == null || device.AbsY == null)
{
throw new ArgumentException("Device is not a touchscreen");
}
_screenInfo = screenInfo;
_calibration = description.CalibrationMatrix;
_axisX = device.AbsX.Value;
_axisY = device.AbsY.Value;
}